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Vishay General Semiconductor - Diodes Division P4SMA62CAHM3_A/H
- Part No.:
- P4SMA62CAHM3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
P4SMA62CAHM3_A/H.pdf
- Description:
- TVS DIODE 53VWM 85VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:4,166
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Product details
Overview
P4SMA62CAHM3_A/H from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMA (DO-214AC) package, designed for clamping voltage transients on signal and power lines. It features a 53.0 V standoff voltage (VWM), 65.1 V maximum breakdown voltage (VBR), 85.0 V clamping voltage (VC) at 4.7 A peak pulse current (IPPM), and 400 W peak pulse power (PPPM) with 10/1000 µs waveform - used to protect MOSFETs, ICs, and sensor signal lines in automotive and industrial electronics.
For engineers reviewing the P4SMA62CAHM3_A/H datasheet, P4SMA62CAHM3_A/H pinout, P4SMA62CAHM3_A/H application, or P4SMA62CAHM3_A/H equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification, halogen-free RoHS compliance, low thermal resistance (RθJL = 30 °C/W), and compatibility with automated SMT placement on standard PCB copper pads.
Technical Context
The P4SMA62CAHM3_A/H operates as a bidirectional avalanche diode, symmetrically clamping transient overvoltages in both polarities without polarity marking. Its glass-passivated junction ensures stable breakdown characteristics and fast response time (<1 ns), enabling protection against ESD, lightning-induced surges, and inductive switching spikes.
Rated for 150 °C maximum junction temperature and MSL Level 1 moisture sensitivity, it delivers 400 W peak pulse power (derated to 300 W above 91 V) under 10/1000 µs waveform, with 0.104 %/°C temperature coefficient of VBR and 120 °C/W junction-to-ambient thermal resistance on standard 0.2" × 0.2" copper pads.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 53.0 V - Maximum continuous reverse voltage before clamping begins; defines safe operating margin below breakdown. |
| VBR (Breakdown Voltage) | 58.9–65.1 V at 1.0 mA - Confirmed avalanche onset range; ensures predictable turn-on during transients. |
| VC (Clamping Voltage) | 85.0 V at IPPM = 4.7 A - Peak voltage seen by protected circuit during 10/1000 µs surge; determines stress on downstream components. |
| PPPM (Peak Pulse Power) | 400 W (10/1000 µs) - Energy-handling capacity for single transient events; derates to 300 W above 91 V nominal. |
| TJ max. | 150 °C - Maximum allowable junction temperature; supports operation in under-hood automotive and industrial environments. |
| RθJL | 30 °C/W - Low junction-to-lead thermal resistance; enables efficient heat transfer to PCB traces without heatsink. |
| AEC-Q101 Qualified | Yes - Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per AEC specification. |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, halogen-free, RoHS-compliant, matte tin-plated leads solderable per J-STD-002 and JESD 22-B102. Bidirectional construction has no polarity marking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry (negative polarity) | One terminal of symmetrical avalanche junction; conducts during negative transients relative to cathode reference. |
| Cathode | Transient current entry (positive polarity) | Other terminal of symmetrical junction; conducts during positive transients - functionally identical to anode in bidirectional mode. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or floating signal lines without polarity concerns. |
| 400 W peak pulse power (10/1000 µs) | Handles high-energy transients common in automotive load-dump and industrial motor switching events. |
| AEC-Q101 qualified (HM3 suffix) | Validated for automotive electronics use including engine control units, body modules, and ADAS sensors. |
| MSL Level 1, 260 °C reflow compatible | Supports standard lead-free SMT assembly without pre-baking or special handling. |
| Glass passivated junction | Ensures long-term stability of breakdown voltage and leakage current across temperature and life cycles. |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor inputs (e.g., pressure, temperature) from load dump and ESD in vehicle ECUs. IC Role / Device Role / Timing Role: Bidirectional TVS clamping element placed directly at connector or IC input pins. Use Value: Limits transient voltage to ≤85.0 V during 4.7 A surges, preventing latch-up or gate oxide damage in 3.3 V/5 V interface ICs. |
Use Scenario: Shielding digital input/output channels of programmable logic controllers from inductive kickback and field wiring surges. IC Role / Device Role / Timing Role: Primary overvoltage clamp on 24 V DC I/O lines, mounted adjacent to terminal blocks. Use Value: Withstands 400 W pulses without degradation, maintaining <1 µA leakage at 53.0 V to avoid false triggering in high-impedance sensing circuits. |
| Telecom Line Interface | Consumer Appliance Motor Control |
Use Scenario: Safeguarding Ethernet PHY interfaces and RS-485 transceivers in network equipment exposed to lightning-induced surges. IC Role / Device Role / Timing Role: Secondary-level protection device between primary gas discharge tube and IC, absorbing residual energy. Use Value: Fast <1 ns response captures high-frequency surge components missed by slower primary protectors, reducing total clamping voltage. |
Use Scenario: Suppressing commutation spikes from brushed DC motors in washing machines, HVAC blowers, and power tools. IC Role / Device Role / Timing Role: Across-the-line TVS on motor terminals or H-bridge power stage outputs. Use Value: 150 °C TJ max. and 30 °C/W RθJL allow reliable operation near hot motor windings without thermal runaway. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ64CA | 64 V VWM, 71.1 V VBR min, 103 V VC at 3.9 A; same SMA package but lower PPPM (400 W unchanged), higher clamping voltage. | Higher VC reduces margin for 5 V or 3.3 V IC protection; better suited for 24 V systems where 103 V clamping is acceptable. | Select when higher VWM is needed to avoid leakage in higher-bias circuits, accepting elevated clamping stress. |
| SMCJ64CA | 64 V VWM, 71.1 V VBR min, 103 V VC at 12.3 A; larger SMC (DO-214AB) package, 1500 W PPPM rating. | Higher energy handling supports repeated surges in harsh industrial settings; requires larger PCB footprint and layout revision. | Choose for applications demanding >400 W pulse robustness or multi-event surge endurance, not drop-in replacement. |
Compared with SMAJ64CA and SMCJ64CA, the P4SMA62CAHM3_A/H offers tighter VBR tolerance (58.9–65.1 V vs. 71.1–78.8 V), lower clamping voltage (85.0 V vs. ≥103 V), and AEC-Q101 qualification - making it optimal for space-constrained, automotive-grade 24 V signal line protection where precise voltage limiting is critical.
Availability
P4SMA62CAHM3_A/H is available at Aetrix Electronics and suitable for automotive ECU design, industrial PLC I/O protection, telecom line interface hardening, and consumer appliance motor control requiring stable component supply and AEC-Q101 assurance.
Supply support for P4SMA62CAHM3_A/H includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Vishay General Semiconductor is a global leader in discrete semiconductors, specializing in diodes, rectifiers, MOSFETs, and protection devices with emphasis on reliability, efficiency, and automotive qualification.
The P4SMA series targets cost-sensitive, high-volume transient suppression needs in automotive, industrial, and telecom applications - delivering standardized TVS performance in compact SMA packages with AEC-Q101 and halogen-free options.
FAQ
What does the "HM3" suffix indicate in P4SMA62CAHM3_A/H?
The HM3 suffix in P4SMA62CAHM3_A/H denotes halogen-free, RoHS-compliant construction with AEC-Q101 qualification. It confirms compliance with automotive reliability standards including temperature cycling, highly accelerated life testing (HALT), and electrostatic discharge (ESD) immunity - distinguishing it from commercial-grade M3 or E3 variants.
Is P4SMA62CAHM3_A/H unidirectional or bidirectional?
P4SMA62CAHM3_A/H is a bidirectional TVS diode, as confirmed by the "CA" suffix and absence of cathode band marking. It provides symmetrical clamping for both positive and negative transients, making it suitable for AC signal lines, differential buses like CAN, and floating power rails where polarity reversal may occur.
What is the clamping voltage of P4SMA62CAHM3_A/H at its rated peak pulse current?
The clamping voltage (VC) of P4SMA62CAHM3_A/H is 85.0 V at its specified peak pulse current (IPPM) of 4.7 A under the standard 10/1000 µs waveform. This value is measured per Figure 1 in Vishay document 88367 and defines the maximum voltage imposed on protected circuitry during surge events.
Can P4SMA62CAHM3_A/H replace P4SMA62AHE3_A/H in an automotive design?
No - P4SMA62CAHM3_A/H cannot directly replace P4SMA62AHE3_A/H because the former is bidirectional (CA) while the latter is unidirectional (A). Substituting them would compromise protection on reverse-polarity transients. For bidirectional replacement, only other CA-suffixed variants like P4SMA62CAHE3_A/H are functionally equivalent.
What PCB pad layout is recommended for optimal thermal performance of P4SMA62CAHM3_A/H?
Vishay specifies mounting P4SMA62CAHM3_A/H on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal to achieve rated 400 W peak pulse power. Smaller pads reduce thermal dissipation and cause premature failure; thermal vias under pads further improve heat transfer in high-reliability automotive or industrial layouts.
P4SMA62CAHM3_A/H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AC, SMA
- Series:
- P4SMA, TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 53V
- Voltage - Breakdown (Min):
- 58.9V
- Voltage - Clamping (Max) @ Ipp:
- 85V
- Current - Peak Pulse (10/1000µs):
- 4.7A
- Power - Peak Pulse:
- 400W
- Power Line Protection:
- No
- Applications:
- Telecom
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
P4SMA62CAHM3_A/H FAQ
1.How can I place an order for P4SMA62CAHM3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for P4SMA62CAHM3_A/H on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for P4SMA62CAHM3_A/H reliable?
The price and inventory of P4SMA62CAHM3_A/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4SMA62CAHM3_A/H is usually 5 days.
3.What payment methods are accepted for P4SMA62CAHM3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4SMA62CAHM3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4SMA62CAHM3_A/H?
P4SMA62CAHM3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4SMA62CAHM3_A/H order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for P4SMA62CAHM3_A/H?
For technical support, including P4SMA62CAHM3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4SMA62CAHM3_A/H requirements.
6.How does Aetrix verify that P4SMA62CAHM3_A/H is sourced from the original manufacturer or authorized distributors?
All P4SMA62CAHM3_A/H products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that P4SMA62CAHM3_A/H meets industry standards.
7.What is the process for return or replacement of P4SMA62CAHM3_A/H?
All P4SMA62CAHM3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with P4SMA62CAHM3_A/H, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The P4SMA62CAHM3_A/H part is unused and in its original packaging.
Return procedure for P4SMA62CAHM3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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